If a tender, sore spot on the rim of your ear keeps you awake whenever you lie on that side, the cause is usually chondrodermatitis nodularis helicis. An ordinary pillow presses on the same spot all night. A pillow with a hole in the center lets the ear rest on air, so the pressure that causes the pain is removed while the contoured edge still supports your neck and shoulders. The rest of this guide explains what CNH is, why it happens, and how a pillow with a hole relieves it.
What Is Chondrodermatitis Nodularis Helicis
Chondrodermatitis nodularis helicis, usually shortened to CNH, is a painful condition of the outer ear. It shows up as a small, tender nodule on the helix or antihelix, the curved outer rim of the ear. CNH is most common in middle aged and older adults, more often in men, although women get it too. In clinical notes the medical abbreviation is CNH, and you will sometimes see it mistyped as CHN.
The nodule is usually small, often no bigger than a pencil eraser, but it can grow larger, last for months or years, and sometimes ulcerate, drain or bleed. Because it can look like a skin cancer, a doctor may take a biopsy to be sure, but unlike most skin cancers, CNH is tender and painful to the touch.
What Causes CNH
CNH is caused by prolonged pressure on the ear. Resting the same spot of the ear against a pillow night after night reduces blood flow to the skin and cartilage, and the tissue starts to break down. That is why CNH is so common in people who sleep mainly on one side, and why it is more common in older adults, who tend to move less during the night. Cold weather, sun exposure, and pressure from headphones, hearing aids or a phone held to the ear can make it worse.
How the CNH Pillow Relieves the Pressure
Because the cause is pressure, the recognised first line treatment is to remove the pressure. That is exactly what the hole in the middle does:
- The sore part of the ear sits inside the central hole, in open space, so it never contacts the pillow surface.
- No contact means no pressure, and removing the pressure lets the skin and cartilage recover.
- The contoured edge still supports the head and neck, so you keep sleeping on your usual side instead of being told to change position for months.
This is why a pillow with a hole works where ordinary cushions and foam wedges fall short. They reduce the pressure. They do not remove it. If your pain sits in the cartilage at the top of the ear, the same mechanism applies to pillow ear cartilage pain. Some patients also use a cnh ear protector style cushion for inadvertent turning, but a full pillow with a hole is what most people sleep on every night.
Ten Things to Know About Ear Pressure Sores
- Pressure sores on the ear typically occur in people who sleep mainly on one side, whether by habit or because of shoulder, neck or arm pain.
- They occur on the most prominent parts of the ear, the rim of the helix or the antihelix.
- In the earliest stage a pressure sore may simply be a small, tender, red area.
- Later stages appear as tender red warty papules, small punched out ulcers, or deep ulcerations extending to the cartilage.
- Ear pressure sores may be mistaken for skin cancers, but skin cancers are rarely tender or painful.
- As with any pressure sore, the principal treatment is removal of the pressure from the involved area.
- Pressure sores on the ears are technically called chondrodermatitis nodularis helicis, or CNH.
- Removing the pressure on the external ear is what treats CNH at its root cause.
- Ear pressure sores are most common in the elderly.
- They commonly recur after surgical treatment if the patient keeps lying on the ear, because the pressure remains.
For carers managing a bedridden or elderly relative, there is a dedicated pillow for pressure sores on the ear built for longer prone use.
Designed by a Board-Certified Dermatologist
The CNH Pillow was designed by Dr. Joe R. Cannon, a board certified dermatologist who used it as a practical treatment for his own chondrodermatitis patients. It is about the size of a standard pillow, with a durable cover and a non allergenic fill, which makes it practical for nearly anyone living with CNH or recurring ear pressure sores. The fact that the pillow was created by the dermatologist who treated the condition is what separates it from generic cushions.
Where to Get a CNH Pillow
Because removing pressure is the treatment, the pillow you choose is the solution. There are two options. The CNH Sleep Easy Pillow Original is the memory foam version with firm, structured support. The CNH Cotton Comfort Pillow is the soft natural fill version for sleepers who find foam too firm. Both relieve CNH the same way.
Frequently Asked Questions About CNH
What is chondrodermatitis nodularis helicis?
It is a painful nodule on the outer rim of the ear, usually called CNH. It is caused by prolonged pressure on the ear during sleep, which reduces blood flow to the skin and cartilage. It is most common in middle aged and older adults.
What does CNH stand for?
CNH stands for chondrodermatitis nodularis helicis. It is sometimes written as CNCH or mistyped as CHN. It simply means a tender, inflamed nodule on the cartilage of the ear.
What causes CNH?
Prolonged pressure on one spot of the ear, most often from sleeping on the same side every night. The pressure cuts off blood supply to the skin and cartilage, which is why removing the pressure is the recognised treatment.
How does a CNH pillow help?
The hole in the middle lets the sore part of the ear rest in open air, so it never presses against the pillow. With no contact there is no pressure, and removing pressure is what allows the ear to recover. The same principle helps pillow ear cartilage pain. See the pillow with a hole range for how this works.
Can CNH be treated without surgery?
Often, yes. Many people manage CNH conservatively by removing the nightly pressure on the ear. CNH also commonly recurs after surgery if the patient keeps lying on the same ear, which is why a pressure relieving pillow is recommended either way.
Which CNH pillow should I use?
Both CNH pillows relieve the condition the same way. Choose the memory foam CNH Sleep Easy Pillow Original for firm support, or the softer CNH Cotton Comfort Pillow if you find foam too firm. After ear surgery, the guide to ear care after otoplasty explains how to use it during recovery.